﻿using Grand.Business.Core.Extensions;
using Grand.Business.Core.Interfaces.Common.Localization;
using Grand.Business.Core.Interfaces.Common.Stores;
using Grand.Business.Core.Interfaces.Messages;
using Grand.Business.Core.Interfaces.Storage;
using Grand.Domain.Permissions;
using Grand.Domain.Messages;
using Grand.Web.Admin.Extensions.Mapping;
using Grand.Web.Admin.Models.Messages;
using Grand.Web.Common.DataSource;
using Grand.Web.Common.Filters;
using Grand.Web.Common.Security.Authorization;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.Rendering;

namespace Grand.Web.Admin.Controllers;

[PermissionAuthorize(PermissionSystemName.MessageTemplates)]
public class MessageTemplateController : BaseAdminController
{
    #region Constructors

    public MessageTemplateController(IMessageTemplateService messageTemplateService,
        IEmailAccountService emailAccountService,
        ILanguageService languageService,
        ITranslationService translationService,
        IMessageTokenProvider messageTokenProvider,
        IStoreService storeService,
        IDownloadService downloadService,
        EmailAccountSettings emailAccountSettings)
    {
        _messageTemplateService = messageTemplateService;
        _emailAccountService = emailAccountService;
        _languageService = languageService;
        _translationService = translationService;
        _messageTokenProvider = messageTokenProvider;
        _storeService = storeService;
        _downloadService = downloadService;
        _emailAccountSettings = emailAccountSettings;
    }

    #endregion

    #region Fields

    private readonly IMessageTemplateService _messageTemplateService;
    private readonly IEmailAccountService _emailAccountService;
    private readonly ILanguageService _languageService;
    private readonly ITranslationService _translationService;
    private readonly IMessageTokenProvider _messageTokenProvider;
    private readonly IStoreService _storeService;
    private readonly IDownloadService _downloadService;
    private readonly EmailAccountSettings _emailAccountSettings;

    #endregion Fields

    #region Methods

    public IActionResult Index()
    {
        return RedirectToAction("List");
    }

    public async Task<IActionResult> List()
    {
        var model = new MessageTemplateListModel();
        //stores
        model.AvailableStores.Add(new SelectListItem
            { Text = _translationService.GetResource("Admin.Common.All"), Value = "" });
        foreach (var s in await _storeService.GetAllStores())
            model.AvailableStores.Add(new SelectListItem { Text = s.Shortcut, Value = s.Id });

        return View(model);
    }

    [PermissionAuthorizeAction(PermissionActionName.List)]
    [HttpPost]
    public async Task<IActionResult> List(DataSourceRequest command, MessageTemplateListModel model)
    {
        var messageTemplates = await _messageTemplateService.GetAllMessageTemplates(model.SearchStoreId);

        if (!string.IsNullOrEmpty(model.Name))
            messageTemplates = messageTemplates.Where
            (x => x.Name.ToLowerInvariant().Contains(model.Name.ToLowerInvariant()) ||
                  x.Subject.ToLowerInvariant().Contains(model.Name.ToLowerInvariant())).ToList();
        var items = new List<MessageTemplateModel>();
        foreach (var x in messageTemplates)
        {
            var templateModel = x.ToModel();
            var stores = (await _storeService
                    .GetAllStores())
                .Where(s => !x.LimitedToStores || templateModel.Stores.Contains(s.Id))
                .ToList();
            for (var i = 0; i < stores.Count; i++)
            {
                templateModel.ListOfStores += stores[i].Shortcut;
                if (i != stores.Count - 1)
                    templateModel.ListOfStores += ", ";
            }

            items.Add(templateModel);
        }

        var gridModel = new DataSourceResult {
            Data = items,
            Total = messageTemplates.Count
        };

        return Json(gridModel);
    }

    [PermissionAuthorizeAction(PermissionActionName.Create)]
    public async Task<IActionResult> Create()
    {
        var model = new MessageTemplateModel {
            //Stores
            AllowedTokens = _messageTokenProvider.GetListOfAllowedTokens()
        };

        //available email accounts
        foreach (var ea in await _emailAccountService.GetAllEmailAccounts())
            model.AvailableEmailAccounts.Add(ea.ToModel());

        return View(model);
    }

    [PermissionAuthorizeAction(PermissionActionName.Create)]
    [HttpPost]
    [ArgumentNameFilter(KeyName = "save-continue", Argument = "continueEditing")]
    public async Task<IActionResult> Create(MessageTemplateModel model, bool continueEditing)
    {
        if (ModelState.IsValid)
        {
            var messageTemplate = model.ToEntity();
            //attached file
            if (!model.HasAttachedDownload)
                messageTemplate.AttachedDownloadId = "";
            if (model.SendImmediately)
                messageTemplate.DelayBeforeSend = null;

            await _messageTemplateService.InsertMessageTemplate(messageTemplate);

            Success(_translationService.GetResource("Admin.Content.MessageTemplates.AddNew"));

            if (continueEditing)
            {
                //selected tab
                await SaveSelectedTabIndex();

                return RedirectToAction("Edit", new { id = messageTemplate.Id });
            }

            return RedirectToAction("List");
        }


        //If we got this far, something failed, redisplay form
        model.HasAttachedDownload = !string.IsNullOrEmpty(model.AttachedDownloadId);
        model.AllowedTokens = _messageTokenProvider.GetListOfAllowedTokens();
        //available email accounts
        foreach (var ea in await _emailAccountService.GetAllEmailAccounts())
            model.AvailableEmailAccounts.Add(ea.ToModel());
        //Store
        return View(model);
    }

    [PermissionAuthorizeAction(PermissionActionName.Preview)]
    public async Task<IActionResult> Edit(string id)
    {
        var messageTemplate = await _messageTemplateService.GetMessageTemplateById(id);
        if (messageTemplate == null)
            //No message template found with the specified id
            return RedirectToAction("List");

        var model = messageTemplate.ToModel();
        model.SendImmediately = !model.DelayBeforeSend.HasValue;
        model.HasAttachedDownload = !string.IsNullOrEmpty(model.AttachedDownloadId);
        model.AllowedTokens = _messageTokenProvider.GetListOfAllowedTokens();
        //available email accounts
        foreach (var ea in await _emailAccountService.GetAllEmailAccounts())
            model.AvailableEmailAccounts.Add(ea.ToModel());

        //locales
        await AddLocales(_languageService, model.Locales, (locale, languageId) =>
        {
            locale.BccEmailAddresses = messageTemplate.GetTranslation(x => x.BccEmailAddresses, languageId, false);
            locale.Subject = messageTemplate.GetTranslation(x => x.Subject, languageId, false);
            locale.Body = messageTemplate.GetTranslation(x => x.Body, languageId, false);

            var emailAccountId = messageTemplate.GetTranslation(x => x.EmailAccountId, languageId, false);
            locale.EmailAccountId = !string.IsNullOrEmpty(emailAccountId)
                ? emailAccountId
                : _emailAccountSettings.DefaultEmailAccountId;
        });

        return View(model);
    }

    [PermissionAuthorizeAction(PermissionActionName.Edit)]
    [HttpPost]
    [ArgumentNameFilter(KeyName = "save-continue", Argument = "continueEditing")]
    public async Task<IActionResult> Edit(MessageTemplateModel model, bool continueEditing)
    {
        var messageTemplate = await _messageTemplateService.GetMessageTemplateById(model.Id);
        if (messageTemplate == null)
            //No message template found with the specified id
            return RedirectToAction("List");

        var prevAttachment = messageTemplate.AttachedDownloadId;

        if (ModelState.IsValid)
        {
            messageTemplate = model.ToEntity(messageTemplate);
            //attached file
            if (!model.HasAttachedDownload)
                messageTemplate.AttachedDownloadId = "";
            if (model.SendImmediately)
                messageTemplate.DelayBeforeSend = null;

            //delete an old "attachment" file
            if (!string.IsNullOrEmpty(prevAttachment) && prevAttachment != messageTemplate.AttachedDownloadId)
            {
                var attachment = await _downloadService.GetDownloadById(prevAttachment);
                if (attachment != null)
                    await _downloadService.DeleteDownload(attachment);
            }

            await _messageTemplateService.UpdateMessageTemplate(messageTemplate);

            Success(_translationService.GetResource("Admin.Content.MessageTemplates.Updated"));

            if (continueEditing)
            {
                //selected tab
                await SaveSelectedTabIndex();

                return RedirectToAction("Edit", new { id = messageTemplate.Id });
            }

            return RedirectToAction("List");
        }

        //If we got this far, something failed, redisplay form
        model.HasAttachedDownload = !string.IsNullOrEmpty(model.AttachedDownloadId);
        model.AllowedTokens = _messageTokenProvider.GetListOfAllowedTokens();
        //available email accounts
        foreach (var ea in await _emailAccountService.GetAllEmailAccounts())
            model.AvailableEmailAccounts.Add(ea.ToModel());

        return View(model);
    }

    [PermissionAuthorizeAction(PermissionActionName.Delete)]
    [HttpPost]
    public async Task<IActionResult> Delete(string id)
    {
        var messageTemplate = await _messageTemplateService.GetMessageTemplateById(id);
        if (messageTemplate == null)
            //No message template found with the specified id
            return RedirectToAction("List");

        await _messageTemplateService.DeleteMessageTemplate(messageTemplate);

        //delete an old "attachment" file
        if (!string.IsNullOrEmpty(messageTemplate.AttachedDownloadId))
        {
            var attachment = await _downloadService.GetDownloadById(messageTemplate.AttachedDownloadId);
            if (attachment != null)
                await _downloadService.DeleteDownload(attachment);
        }

        Success(_translationService.GetResource("Admin.Content.MessageTemplates.Deleted"));
        return RedirectToAction("List");
    }

    [PermissionAuthorizeAction(PermissionActionName.Edit)]
    [HttpPost]
    public async Task<IActionResult> CopyTemplate(MessageTemplateModel model)
    {
        var messageTemplate = await _messageTemplateService.GetMessageTemplateById(model.Id);
        if (messageTemplate == null)
            //No message template found with the specified id
            return RedirectToAction("List");

        try
        {
            var newMessageTemplate = await _messageTemplateService.CopyMessageTemplate(messageTemplate);
            Success("The message template has been copied successfully");
            return RedirectToAction("Edit", new { id = newMessageTemplate.Id });
        }
        catch (Exception exc)
        {
            Error(exc.Message);
            return RedirectToAction("Edit", new { id = model.Id });
        }
    }

    #endregion
}